<!-- eslint-disable vue/multi-word-component-names -->
<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区 -->
    <el-card class="box-card">
      <!-- 这是搜索与添加区域 -->
      <!-- 添加栏栅布局以及添加间隔 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input clearable @clear="getUsersList()" v-model="queryInfo.query" placeholder="请输入内容"
            class="input-with-select">
            <el-button @click="getUsersList()" slot="append" icon="el-icon-search"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表区 -->
      <el-table :data="userlist" border stripe>
        <!-- 添加索引列 -->
        <el-table-column type="index" label="#">
        </el-table-column>
        <el-table-column prop="username" label="姓名">
        </el-table-column>
        <el-table-column prop="email" label="邮箱">
        </el-table-column>
        <el-table-column prop="mobile" label="电话">
        </el-table-column>
        <el-table-column prop="role_name" label="角色">
        </el-table-column>
        <el-table-column prop="mg_state" label="状态">
          <!-- 通过作用域插槽获取当前行的所有数据 -->
          <template slot-scope="scope">
            <!-- {{ scope.row }} -->
            <el-switch @change="userStateChanged(scope.row)" v-model="scope.row.mg_state">
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <!-- eslint-disable-next-line -->
          <template slot-scope="scope">
            <!-- {{ scope.row }} -->
            <!-- 修改按钮 -->
            <el-button @click="showEditDialog(scope.row.id)" type="primary" icon="el-icon-edit" circle></el-button>
            <!-- 删除按钮 -->
            <el-button @click="removeUserById(scope.row.id)" type="danger" icon="el-icon-delete" circle></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip :enterable="false" effect="dark" content="分配角色" placement="top">
              <el-button @click="setRole(scope.row)" type="warning" icon="el-icon-setting" circle>
              </el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum" :page-sizes="[1, 2, 5, 10]" :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper" :total="total">
      </el-pagination>
    </el-card>
    <!-- 添加用户的对话框 -->
    <el-dialog @close="addDialogClosed" title="添加用户" :visible.sync="addDialogVisible" width="50%">
      <!-- 内容主题区 -->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 修改用户的对话框 -->
    <el-dialog @close="editDialogClosed" title="修改用户" :visible.sync="editDialogVisible" width="50%">
      <el-form :model="editForm" :rules="addFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input disabled v-model="editForm.username"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配角色的对话框 -->
    <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" @close="setRoleDialogClosed" width="50%">
      <div>
        <p>当前的用户：{{ userInfo.username }}</p>
        <p>当前的角色：{{ userInfo.role_name }}</p>
        <p>分配角色：
          <template>
            <el-select v-model="selectedRoleId" placeholder="请选择">
              <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id">
              </el-option>
            </el-select>
          </template>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>

</template>
<script>
export default {
  data() {
    // 验证邮箱的校验规则
    const checkEmail = (rule, value, callback) => {
      // 验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      // 验证正则表达式
      if (regEmail.test(value)) {
        // 合法的邮箱
        return callback()
      }
      callback(new Error('请输入合法的邮箱'))
    }
    // 验证手机号的校验规则
    const checkMobile = (rule, value, callback) => {
      // 验证手机号的正则表达式
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      // 验证正则表达式
      if (regMobile.test(value)) {
        // 合法的手机号
        return callback()
      }
      callback(new Error('请输入合法的手机号'))
    }

    return {
      // 获取用户列表的参数
      queryInfo: {
        query: '',
        // 当前页数
        pagenum: 1,
        // 当前每页显示多少条数据
        pagesize: 2
      },
      userlist: [],
      total: 0,
      // 控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      // 控制修改用户信息对话框的显示与隐藏
      editDialogVisible: false,
      // 添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 查询到的用户对象保存
      editForm: {
      },
      // 添加表单的规则的对象
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '用户名的长度在3~10个字符之间', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入用户密码', trigger: 'blur' },
          { min: 6, max: 15, message: '用户密码的长度在6~15个字符之间', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入用户邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]

      },
      // 控制分配角色对话框的显示与隐藏
      setRoleDialogVisible: false,
      // 需要被分配角色的用户信息
      userInfo: {},
      // 定义权限列表
      rolesList: [],
      // 已选中的角色id值
      selectedRoleId: ''
    }
  },
  created() {
    this.getUsersList()
  },
  methods: {
    async getUsersList() {
      const { data: res } = await this.$http.get('users',
        { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error('获取用户失败！')
      this.userlist = res.data.users
      this.total = res.data.total
      // console.log(res)
    },
    // 监听pagesize改变的事件
    handleSizeChange(newSize) {
      // console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUsersList()
    },
    // 监听页码值改变的事件
    handleCurrentChange(newPage) {
      // console.log(newPage)
      this.queryInfo.pagenum = newPage
      this.getUsersList()
    },
    // 监听Switch开关状态的改变
    async userStateChanged(userInfo) {
      // console.log(userInfo)
      const { data: res } = await this.$http.put(
        `users/${userInfo.id}/state/${userInfo.mg_state}`)
      // console.log(res)
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state
        return this.$message.error('修改状态失败')
      }
      this.$message.success('修改状态成功！')
    },
    // 监听添加用户对话框关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    // 点击按钮添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) {
          return
        }
        // console.log(this.addForm)
        // 可以发起添加用户请求
        const { data: res } = await this.$http.post('users', this.addForm)
        // console.log(res)
        if (res.meta.status !== 201) {
          return this.$message.error('添加用户失败')
        }
        this.$message.success('添加用户成功！')
        // 隐藏添加用户的对话框
        this.addDialogVisible = false
        // 重新获取用户的列表数据
        this.getUsersList()
      })
    },
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) {
          return
        }
        // console.log(this.editForm)
        // 可以发起添加用户请求
        const { data: res } = await this.$http.put(
          'users/' + this.editForm.id, { email: this.editForm.email, mobile: this.editForm.mobile })
        // console.log(res)
        if (res.meta.status !== 200) {
          return this.$message.error('更新用户信息失败')
        }
        // 隐藏添加用户的对话框
        this.editDialogVisible = false
        // 重新获取用户的列表数据
        this.getUsersList()
        this.$message.success('更新用户信息成功！')
      })
    },
    // 展示用户编辑的对话框
    async showEditDialog(id) {
      // console.log(id)
      const { data: res } = await this.$http.get(`users/${id}`)
      // console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户信息失败')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 监听修改用户对话框的关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    // 根据用户id删除对应用户
    async removeUserById(id) {
      // console.log(id)
      // 询问用户是否删除用户
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      // .then(() => {
      //   this.$message({
      //     type: 'success',
      //     message: '删除成功!'
      //   })
      // }).catch(() => {
      //   this.$message({
      //     type: 'info',
      //     message: '已取消删除'
      //   })
      // })
      // 如果用户确认删除则返回值为confirm
      // 如果用户取消的用户则返回值为cancel
      // console.log(confirmResult)
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      // console.log('确认了删除')
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除失败')
      }
      this.$message.success('删除成功')
      // 将用户列表定向为第一页
      this.queryInfo.pagenum = 1
      this.getUsersList()
    },
    // 展示分配角色的对话框
    async setRole(userInfo) {
      this.userInfo = userInfo
      // console.log(this.userInfo.id)
      // 在展示对话框之前，获取所有角色的列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败')
      }
      this.rolesList = res.data
      this.setRoleDialogVisible = true
    },
    // 点击按钮,分配角色
    async saveRoleInfo () {
      // console.log(this.userInfo.id)
      if (!this.selectedRoleId) {
        return this.$message.error('请选择要分配的角色')
      }
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectedRoleId })
      // console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('更新角色失败')
      }
      this.$message.success('更新角色成功！')
      this.getUsersList()
      this.setRoleDialogVisible = false
    },
    // 监听分配角色的对话框关闭事件
    setRoleDialogClosed () {
      this.selectedRoleId = ''
      this.userInfo = {}
    }
  }
}
</script>

<style lang="less" scoped>
</style>
